package com.huike.web.controller.common;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
import com.huike.clues.service.ISysFileService;
import com.huike.common.config.HuiKeConfig;
import com.huike.common.constant.Constants;
import com.huike.common.core.controller.BaseController;
import com.huike.common.core.domain.AjaxResult;
import com.huike.common.utils.StringUtils;
import com.huike.common.utils.file.FileUtils;
import java.io.BufferedOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * 通用请求处理
 */
@RestController
public class CommonController extends BaseController {
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ISysFileService fileService;


    /**
     * 通用上传请求
     */
    @PostMapping("/common/upload")
    public AjaxResult uploadFile(MultipartFile file) {
        try {
            // 上传文件路径
            return fileService.upload(file);
        } catch (Exception e) {
            return AjaxResult.error(e.getMessage());
        }
    }


    //下载模板
    @GetMapping("/common/download")
    public AjaxResult download(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request) throws Exception {
        try {
            if (!FileUtils.checkAllowDownload(fileName)) {
                throw new Exception(StringUtils.format("文件名称非法,不允许下载", fileName));
            }
            String localPath = HuiKeConfig.getProfile();
            String downloadPath = localPath + StringUtils.substringAfter(fileName
                    , Constants.RESOURCE_PREFIX)+"/"+fileName;
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
            if (delete) {
                FileUtils.deleteFile(downloadPath);
            }
        } catch (Exception e) {
            log.error("下载文件失败", e);
            return AjaxResult.error(e.getMessage());
        }
        return AjaxResult.success("文件下载成功");
    }
}